I'm guessing that somewhere in your range of cells B8:B7732 or D or H
already contains a #VALUE! error somewhere.
You can find these & fix/clear them and the formula should work.
Bob Umlas
Excel MVP

"Ayo" wrote in message
...
I need some help with this formular. I am trying to figure our how to
count
how many cells in a date column has May has the month and 2008 as the
year.
Hence the
"--(MONTH('InSite Milestones'!$H$8:$H$7732)=MONTH(D$3)))),--(YEAR('InSite
Milestones'!$H$8:$H$7732)=YEAR(D$3))" in the formular below. But I am get
#VALUE! error for MONTH('InSite Milestones'!$H$8:$H$7732) and YEAR('InSite
Milestones'!$H$8:$H$7732), any ideas?

=(SUMPRODUCT(--('InSite Milestones'!$B$8:$B$7732=$B4),--('InSite
Milestones'!$D$8:$D$7732=$C4),--(MONTH('InSite
Milestones'!$H$8:$H$7732)=MONTH(D$3)),--(YEAR('InSite
Milestones'!$H$8:$H$7732)=YEAR(D$3))))